Parts for your 2021 Ford Fiesta-Gas struts

2021 Ford Fiesta gas struts — what they do and when to replace them

Gas struts are absolutely relevant to the 2021 Ford Fiesta. Ford’s Workshop Manual for the Fiesta Mk8 (model years 2017–2023) lists a “Liftgate Support Strut – Removal and Installation” procedure in section 501-03, and Ford’s parts catalogues show OEM “Liftgate Support Strut” listings for 2021 Fiesta variants. Independent technical references such as Haynes Online also identify gas-pressurised tailgate struts on this model. The bonnet on most trims uses a prop rod rather than gas struts, but the tailgate relies on a matched pair of gas struts to lift and hold it safely.

On the Fiesta, the gas struts do the heavy lifting every time the tailgate is opened. They’re sealed, nitrogen-charged dampers that counterbalance the weight of the hatch so it lifts smoothly and stays put. As they age, internal seals can wear and pressure drops off, showing up as a tailgate that rises slowly, sinks in colder weather, or won’t stay up at all. That’s the cue to sort them.

There’s no fixed replacement interval, but a quick check at each service is smart. Look for oily residue on the shaft, bent ball sockets, or weak lift. Don’t lubricate the chrome shaft—grease attracts grit and wrecks the seals. Just keep the exposed shaft clean with a soft cloth and mild soapy water.

• Replace in pairs to keep lift and balance even.
• Support the tailgate securely before removing a strut.
• Pop the spring clip off the socket, swap the unit, and clip it back—no need to fully remove the clip.
• Fit with the body up/rod down where applicable to keep internal lubrication over the main seal.

If the Fiesta’s tailgate feels heavier than usual, drops unexpectedly, or needs a helping hand to start moving, fresh gas struts will bring back that easy, one-finger lift and solid hold. It’s a quick, affordable job that makes daily use safer and nicer—especially in a wet Kiwi winter or a hot Aussie summer where temperature swings really show up tired struts.

Popular questions about 2021 Ford Fiesta gas struts

How long do Fiesta tailgate struts usually last?
In typical Aussie and NZ conditions, owners often see 5–8 years from factory struts. Lots of short trips, dust, and big temperature changes can shorten their life. If the hatch stops holding itself up—particularly when it’s cold—they’re due.

Can just one strut be replaced?
It’s possible, but not ideal. The tailgate is balanced for a matched pair. Replacing both keeps lift even, reduces hinge stress, and avoids one new strut overworking against one tired one.

Are bonnet gas struts fitted on the 2021 Fiesta?
Most 2021 Fiesta trims use a bonnet prop rod, not gas struts. The gas-pressurised struts are for the tailgate. Aftermarket bonnet strut kits exist, but they’re not factory on most models.